Right-click the orange Avast icon in your system tray (bottom right corner) and select Registration Information . Enter Code: Click on Enter a valid activation code .
Type your code exactly as it appears and click Enter . For Mobile (Android/iOS) Open the Avast Mobile Security app. avast code activation
If you bought the software via a third-party retailer (like Amazon or Best Buy), there may be a delay of a few hours before the code becomes valid in Avast's system. If the issue persists for more than 24 hours, contact Avast Support with your proof of purchase. Right-click the orange Avast icon in your system